Patent GB-810783-A (GB)
Title: Improvements in or relating to series printing machines
Inventor: FANNING RONALD GRAHAM
IPC: B41L47/24
Filed: 1956-10-08
Abstract: 810,783. Series printing machines. ADREMA Ltd. Jan. 8, 1958 [Oct. 8, 1956], No. 30597/56. Class 100(2) A multi-column lister mechanism for attachment to a series printing machine comprises a lister unit mounted for stepwise longitudinal movement relative to the printing head of the printing machine a carriage 7 supported on the lister unit for movement in a transverse direction relative to the lister unit, a slide member 10 carrying a clip 3 for the attachment of the sheet to be printed and supported for movement in a longitudinal direction relative to the carriage, means for moving the carriage transversely after each printing operation so as to bring it successively into each of a plurality of different predetermined position, and cam means for moving the slide member 10 longitudinally relative to the carriage 7 in response to transverse movement of the carriage relative to the lister unit. A channel 1 and rods 2, secured to the printing machine, slidably support the lister unit, the driving means of the printing machine serving to cause bodily rearward movement of the unit through a rack 4 and pawl mechanism. The lister unit contains guide rails 6a, 6b which support rollers 8, 9 of the carriage 7. The carriage 7 includes rollers 12, 13 for guiding a rail 11 fixed to the slide member 10, the latter being also supported by further rollers 20. Longitudinal movement of the slide member relatively to the carriage is achieved by a roller 14 mounted on the slide which engages a track 15 formed in a cam plate 16 removably secured to the lister unit. Transverse movement of the carriage is effected by a motor 17 and chain 18. The chain 18 is connected to the carriage 7 by a shocK-absorber coupling 19. The coupling 19 is rigidly connected to a plate 30 and to the carriage by springs 22 secured at 23. Spring biased latches 25 are provided on the carriage which engage stop members 26a, 26b, 26c. The unit is adapted to cause printing in three columns. In the first column the carriage 7 is positioned with the latches 25 against end stop 26a. After printing the printing machine causes momentary energization of a solenoid 31 which, through crank arm 32 rocks a rod 27 carrying the stop and pivots arms 29a, 29b, 29c for operating micro-switchs 28a, 28b, 28c respectively. The micro-switches are connected in the circuit of the motor 17 and the pivot arms are engaged by the plate 30. Thus the stop 26a is raised together with the switch 28a and arm 29a which is thus freed from the plate 30 so that motor 17 is energized and the carriage driven until the latches 25 engage the second stop 26b and the plate 30 engages arm 29b to operate switch 28b to stop the motor 17. After printing in the second colunm the operation is repeated at the stop 26c for the third column. Operation of switch 28c, however, not only stops the motor but presets it to run in the reverse direction back to stop 26a. A spring-biased ramp plate 33 is provided on the carriage so that on the return run latches 25 do not engage stop 26b. Specifications 531,412, 548,562, 548,563 and 571,135 are referred to.